The FN 20-100037 AR-15 5.56x45mm NATO 10.50" Button Rifled M16 Profile Carbine Length Gas System is an exceptional addition to any AR rifle enthusiast's collection, designed for optimal performance and reliability. Crafted by FN, a leader in firearm manufacturing, this barrel features a robust black phosphate finish that not only enhances its durability but also provides a sleek, matte appearance. The cold hammer forged construction ensures longevity and precision, while the chrome lining facilitates easy cleaning and improved resistance to corrosion. With a barrel length of 10.5 inches and a 1:7 twist rate, this button-rifled barrel is ideal for a variety of shooting applications, from tactical scenarios to competitive shooting. Its compatibility with AR rifles makes it a versatile choice for both seasoned shooters and newcomers alike, allowing for enhanced accuracy and consistent performance. Whether you're looking to upgrade your existing setup or build a new rifle from the ground up, the FN 20-100037 barrel delivers the quality and reliability that FN is known for, making it a smart investment for anyone serious about their shooting experience.